//
//  LWNavigationController.swift
//  MicroBlog
//
//  Created by 孙程 on 2017/7/17.
//  Copyright © 2017年 孙程. All rights reserved.
//

import UIKit

class LWNavigationController: UINavigationController {

    override func viewDidLoad() {
        super.viewDidLoad()

        
    }
    //重写该方法，监听
    override func pushViewController(_ viewController: UIViewController, animated: Bool) {
        super .pushViewController(viewController, animated: animated)
        
    }

    

}
